Gulu ndi mawonekedwe a zomangamanga cellulose

Cellulose eders ndi gulu la mankhwala omwe amachokera ku cellulose, polymer yachilengedwe yomwe ili ndi ma cell a cell. Awo amakhala ndi mapulogalamu osiyanasiyana m'zigawo zomangamanga ndi zomangamanga chifukwa cha zinthu zawo zosiyanasiyana monga kusungidwa kwamadzi, kukhazikika, komanso luso lopanga mafilimu. Mwa zomangamanga, amagwiritsidwa ntchito kwambiri monga zowonjezera pazomanga monga zomatira monga zomatira, utoto, matope, ndi zokutira. Zinthuzi zimathandiza kusintha mphamvu, kukhazikika, komanso magwiridwe antchito.

1. Cellulose etchere

Cellulose eds amapangidwa ndi mamolekyulu osinthika a celluuse posintha magulu a ma hydroxyl (-Oh) ndi magulu a Ether (-O), komwe ali ndi alkyl kapena gulu lina lantchito. The etherification process typically involves the use of reagents such as methyl chloride (for methyl cellulose), ethyl chloride (for ethyl cellulose), or propylene oxide (for hydroxypropyl cellulose).

Cellulose amapangidwa m'makalasi osiyanasiyana kutengera kapangidwe kake, kusungunuka, ndi kuchuluka kwa magulu a hydrouluxyl amasinthidwa). Pazolinga za zomangamanga, cellose eders zimasankhidwa makamaka kuti zitha kupititsa patsogolo zinthu zomanga ngati simenti, laimu, gypsum, ndi makina opanga pulasitala.

2. Mitundu ya cellulose edent yogwiritsidwa ntchito pomanga

Cellulose-cellulal-cell ers ers imatha kukhala yolinganizidwa motengera kapangidwe kake ndi ntchito zogwirira ntchito. Mitundu yogwiritsidwa ntchito kwambiri imaphatikizidwa:

2.1Methyl cellulose (MC)

Methyl celluloseimapangidwa ndi miyala ya methylaing cellulose, kutenthetsa gawo la magulu a hydroxyl ndi magulu a methyl. Imasungunuka kwambiri m'madzi ozizira ndipo imapanga kusasinthika kwa gel osasinthika pafano.

Makhalidwe:

Kusungidwa kwamadzi

Kutha kwa mafilimu

Kuthandizanso pantchito zomangamanga ngati pulasitala, a Stucco, ndi Cemential Templems

Amachita monga wothandizila kukula, kuchuluka kwa ma viscc osasintha kayendedwe kazinthu zosakanikirana

Chomangirira abwino kwambiri komanso kusungitsa zinthu ngati zomata komanso zokutira

2.2Hydroxypropyl methyl cellulose (hpmc)

Etheul ether ether imapangidwa posintha methyl cellulose ndi magulu a hydroxypyl.Hydroxypropyl methyl celluloseimasungunuka yamadzi yambiri kuposa celyl cellulose ndipo imapereka katundu wophatikizika monga kusinthasintha, kutsatira, komanso kukhazikika.

Makhalidwe:

Kusunga kwamadzi koyenera komanso kogwirizana

Imathandizira kukonza kugwiritsidwa ntchito komanso kukhazikika kwa kayendedwe ka simenti

Amachita ngati wokhazikika m'matope, kutanthauzira, ndi tile

Zimathandizira kukulitsa zomatira zokutira

Amatsutsa kukana ndi shrinkage mu zovala zandiweyani

2.3Hydroxyethyl cellulose (hec)

Hydroxyethyl celluloseimapangidwa poyambitsa magulu a hydroxyethyll mu msana wa m'kompyuta. Ether iyi ndi yofunika kwambiri pakuwongolera mafayilo ndi chiwerewere cha zinthu zomanga.

Makhalidwe:

Kusunga kwamadzi kwamphamvu komanso kuwongolera

Amasintha mphamvu youma matope owuma

Ogwiritsidwa ntchito mu grout, pulasitala, ndi zotupa za kugwiritsa ntchito bwino komanso nthawi yotseguka

Zimalepheretsa kuyanika kwa zinthu, kulola kuti pakhale kupunduka kosavuta

2.4Carboxymethyl cellulose (cmc)

Carboxymethyl celluloseimapangidwa ndikuyambitsa magulu a Carboxymethyl (-ch2cooh) mu mawonekedwe apanja. Mu zomangamanga, cmc imagwiritsidwa ntchito posungira madzi abwino kwambiri, kukula, komanso kulumikizidwa.

Makhalidwe:

Kuchuluka kwa madzi omangika ndi kusungidwa

Kuchuluka kwa rheology ndi zowonjezera zowonjezera

Kugwiritsa ntchito simenti ndi makina opaleshoni kuti muchepetse nthawi yotseguka ndikuchepetsa shrinkage

Zogwiritsidwa ntchito kwambiri pamabatani ndi kuphatikiza kuphatikiza

2.5MethylHydroxyethyl cellulose (MHec)

Methylhydroxyethyl cellulosendi mawonekedwe osinthidwa a hydroxyethyl cellulose yomwe imaphatikizapo gulu la Ethyl. Ili ndi katundu wofanana ndi hec koma ndi kusiyana kwina malinga ndi kusungunuka ndi kusungunuka.

Makhalidwe:

Imapereka zabwino kwambiri komanso zolimbitsa thupi

Imathandizira kusungidwa kwamadzi ndikuwongolera kusalala kwa zokutira

Ogwiritsidwa ntchito m'njira zosiyanasiyana zopangidwa ndi zojambula zowoneka bwino mosasinthasintha komanso kufalitsa kosavuta

3. Katundu ndi ntchito mu zomangamanga

Cellulose eds amagwira ntchito yofunika yosintha machitidwe ndi magwiridwe antchito omanga. Ntchito zawo zoyambirira ndi motere:

3.1Kusungidwa kwamadzi

Cellulose eya ndi hydrophilic mwachilengedwe, kutanthauza kuti amatha kuyamwa madzi. Izi ndizofunikira kwambiri m'mapulogalamu a simenti momwe zimalepheretsa kuyanika pakuchiritsa, kuwonetsetsa kuti simenti ikhale yama hydrate moyenera ndikukwaniritsa mphamvu zake.

3.2Kugwirisetsa

Cellulose eders kukonza kugwirira ntchito maboti, mazira, ndi zomatira pokweza ma pulasitiki awo komanso kusinthasintha. Izi zimapangitsa kuti ogwira ntchito azigwira ntchito ndikusintha zinthuzo. Zowonjezera za cellusese eders zimakopa ntchito yosalala, ngakhale ya malo ovuta.

3.3Kuwongolera ma viru

Te cellulose imalamulira ma vinya a zomangamanga, ndikuwapatsa iwo mphamvu yamanja. Izi ndizofunikira pakugwiritsa ntchito ngati tiles, utoto, ndi grout, momwe kusandulika komanso kusandulika kofunikira ndikofunikira.

3.4Mawonekedwe opanga filimu

Cellulose engers mafilimu omwe amapereka zolimba, zolimba, komanso pamwamba pomwe ntchito. Izi ndizofunikira pakumaliza, zofunda, ndi zotupa, pomwe kanema wofowolora amafunikira kuti awonetse mawonekedwe apamwamba kwambiri komanso kukhazikika kwa nthawi yayitali.

3.5Kulumikizana ndi Kutsatira

Cellulose Eders kukonza zotsatsa katundu womanga, kuonetsetsa kuti zowonjezera, matailosi, ndi zinthu zina zogwirizana nazo. Izi ndizofunikira kwambiri pazazitsuka za mataile, mankhwala olumikizana, ndi mapulogalamu ena.

3.6Kukana ku shrinkage ndi kusokonekera

Cellulose amathandizira kuchepetsa chiopsezo cha shrankage ndi kusokonekera m'magawo omanga, makamaka mu zinthu zopangidwa ndi simenti. Mwa kukonza chitetezo chamadzi ndikutha nthawi yotseguka, zowonjezera izi zimalola kuti zikhale zolimba kwa nthawi yayitali, kuchepetsa mwayi wa ming'alu yopanga pakuwuma.

4. Ntchito Zomanga

Te cellulose ndi gawo limodzi lophatikiza maluso ambiri okhala ndi zomangamanga komanso zomangamanga, kukonza mawonekedwe, kukhazikika, komanso kusakaniza kugwiritsa ntchito zomangira. Mapulogalamu ena ofunikira akuphatikizapo:

Matope ndi ma plaksters: Mu cemiyaya mawonekedwe, cellulose imapereka kugwirira ntchito bwino, modelion, ndi kusungidwa kwamadzi, kumapangitsa kuti zikhale zosavuta kugwiritsa ntchito zinthuzo.

Zilonda za Tile: Kugwirizanitsa katundu wokwezeka kwa cellulose eds onetsetsani kuti matailosi amatsatira magawo osiyanasiyana, kupereka zolimba komanso zolimba.

Zovala za khoma: Kuthekera kwa cellose eds kuti mupange filimu yosalala ndikusintha kuchuluka kwa zokutira kumathandizira kumaliza kumaliza ntchito zakunja ndi zamkati.

Zinthu zowuma: Cellulose edie nthawi zambiri zimawonjezeredwa ndikusakaniza mitundu yolumikizirana monga mankhwala ophatikizira, ma grout, ndi croetory modekha odziletsa kuti ayendetse ma viscction ndi kusungidwa kwamadzi.

5. Tebulo lofananira la celluse et

Te cellulose imakhala yofunikira pakugwiritsa ntchito zomanga chifukwa cha kuthekera kwawo popititsa patsogolo kuchuluka kwa zomanga. Ndi chikhalidwe chawo chosiyanasiyana, iwo amafunikanso kugwira ntchito zofunikira pokonza madzi, kuwongolera maulendo, kugwirira ntchito, komanso kolumikizana. Kutha kwawo kusintha magwiridwe ake ndi kukhazikika kwa zinthu zimapangitsa kuti azikhala ndi chinthu chovuta pakupanga kwamakono komanso kapangidwe ka zomangamanga. Mwa kumvetsetsa mitundu yosiyanasiyana ya cellose yosiyanasiyana, opanga amatha kusankha zowonjezera zoyenera kuti akwaniritse zofunika kwambiri.